摘要
Herein,we designed and constructed two metallacycles,1 and 2,to illustrate the conformational effect of isomeric AIE fluoropho res on the platfo rm of supramolecular coordination complexe s(SCCs).Specifically,the dangling phenyl rings in TPE units of the metallacycle 1 align completely outside the main cyclic structure,while in the metallacycle 2,these phenyl rings align half inside and half outside.The experimental results showed that two metallacycles exhibited different behaviors in terms of AIE fluorescence and chemical sensing,which could be attributed to the subtle structural difference of the TPE units.This work repre sents the unification of topics such as self-assembly,AIE,and chemical sensing,and further promotes the understanding for the structure-property relationship of isomeric AIE fluorophores.
基金
This work was financially supported by the National Natrual Science Foundation of China(Nos.21901161 and 22071152)
Natural Science Foundation of Shanghai(No.20ZR1429200)
the China Postdoctoral Science Foundation(No.2020M671094)
Basic Research Program of Xi'an Jiaotong University(No.XZY022020018).